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<p>The synchronous wear of the inner and outer inserts is vital for the indexable drill to maintain stable high performance throughout its life. In this study, a finite element simulation model for the indexable drill is developed. The model includes an accurate material constitutive model that considers strain rate and thermal softening, established experimentally. The synchronous wear design of the inner and outer inserts is implemented using finite element simulation. The initial radial force is optimized before the synchronous wear design. Subsequently, the wear rates of the inner and outer inserts are predicted based on the temperature and stress of the tools extracted from the simulations and the classical wear model, which is utilized for the synchronous wear design. The results indicate that the calculated tool wear rates for the inner and outer inserts are similar when the tool edge radius, rake angle, and relief angle are 20&#xa0;µm, 8°, and 4°, respectively. Synchronous wear can also be achieved for different process parameters based on the optimized insert parameters.</p>

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A synchronous wear design for inner and outer inserts of indexable drill based on numerical simulation

  • 期刊论文

  • 发表日期：

    2025年2月14日

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  • Jinxin Li,
  • Feng Jiang,
  • Ningchang Wang,
  • Shizhan Huang,
  • Tao Zhang,
  • Ansheng Jin,
  • Xiaofeng Yao,
  • Hongfei Yao,
  • Dongwei Zhu,
  • Xuming Zha,
  • Bicheng Guo,
  • Zhengyi Jiang

摘要

The synchronous wear of the inner and outer inserts is vital for the indexable drill to maintain stable high performance throughout its life. In this study, a finite element simulation model for the indexable drill is developed. The model includes an accurate material constitutive model that considers strain rate and thermal softening, established experimentally. The synchronous wear design of the inner and outer inserts is implemented using finite element simulation. The initial radial force is optimized before the synchronous wear design. Subsequently, the wear rates of the inner and outer inserts are predicted based on the temperature and stress of the tools extracted from the simulations and the classical wear model, which is utilized for the synchronous wear design. The results indicate that the calculated tool wear rates for the inner and outer inserts are similar when the tool edge radius, rake angle, and relief angle are 20 µm, 8°, and 4°, respectively. Synchronous wear can also be achieved for different process parameters based on the optimized insert parameters.